Protection system for electrostatographic machines

Details Protection system for electrostatographic machines Protection system for electrostatographic machines

1978-08-14

1980-10-14

Braun, Fred L.

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

365222, G03G 1500, G11C 700

Patent

active

042277981

ABSTRACT:
An electrostatographic type copying or reproduction machine incorporating a programmable controller to operate the various machine components in an integrated manner to produce copies. The controller carries a master program bearing machine operating parameters from which an operating program for the specific copy run desired is formed and used to operate the machine components to produce the copies programmed. A multiple prioritized interrupt system is employed to distribute the operating program to the machine. In particular, upon periodic interruption, control data is output (refreshed) to the various machine components and failure to refresh within a preset interval inhibits machine operation.

REFERENCES:
patent: 3624295 (1971-11-01), Pederson
patent: 3810129 (1974-05-01), Behman et al.
patent: 3944360 (1976-03-01), Deetz et al.
patent: 4104726 (1978-08-01), Fisk et al.
patent: 4120034 (1978-10-01), Fisk et al.

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